Automatic quantitative diagnosis for rolling bearing compound faults via adapted dictionary free orthogonal matching pursuit
Measurement(2020)
摘要
•A right-angle quadrilateral model is established for rolling bearing fault size estimation.•Bearing compound fault step-impact signals are separated via ADOMP.•The selection strategy for the most suitable AGCM atom is made.•Automatic quantitative diagnosis is conducted with the parameterization of step-impact moments.
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关键词
Rolling bearing,Compound faults,Automatic quantitative diagnosis,Adapted dictionary free orthogonal matching pursuit,Sparse representation
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